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Finding the Fourth Proportional to 48,765.63, 67,269.63 and 39,700.75

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Solution

The fourth proportional to 48,765.63, 67,269.63 and 39,700.75 is: 54,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,765.63 : 67,269.63 = 39,700.75 : x
  2. Step 2: Convert to fraction form
    48,765.63/67,269.63 = 39,700.75/x
  3. Step 3: Cross multiply
    48,765.63x = 67,269.63 × 39,700.75
  4. Step 4: Simplify right side
    48,765.63x = 2,670,654,763.22
  5. Step 5: Solve for x
    x = 2,670,654,763.22/48,765.63
  6. Step 6: Final answer
    x = 54,765.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.